Kathi and robert hawn had a pottery stand at the annual skippack craft fair. they sold some of their pottery at the original price of 12.50 each, but later decreased the price of each by 4.00. if they sold all 91 pieces and took in 865.50, find how many they sold at the original price and how much they sold at the reduced price.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Will mark name all segments skew to bc

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0